Johnson, Nelson <br/><br/>
AutoCAD :  the complete reference, 
Nelson Johnson 
 - 2nd ed. 
 - Berkeley, CA. :  Osborne McGraw-Hill,  1991 
 - 896 p. :  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>0078817137 
<br/><br/><label>Subjects--Topical Terms: </label><br/>AutoCAD (Computer program)